In this article let us see how to use a AutoCompleteBox Control in a Silverlight application. As usual, open the visual studio and select the Silverlight project.

First let us drag a AutoCompleteBox to Stack Panel as shown below into MainPage.xaml.

<sdk:AutoCompleteBox x:Name="CountriesNames" Width="200" />

Now we will add List to AutoCompleteBox from MainPage.xaml.cs as shown below. In the below code, First i prepared list of type string and assigned a name "Countries" to it. Then i added strings( Countries names) to the list "Countries".

List<string> Countries = new List<string>();
             Countries.Add("India");
             Countries.Add("USA");
             Countries.Add("Japan");
             Countries.Add("UK");
             Countries.Add("Australia");
             Countries.Add("Switzerland");
             CountriesNames.ItemsSource = Countries;

At last i am binding this list " Countries" to the "AutoCompleteBox" using its name "CountriesNames". Thats it!!! Just press F5 and see the result. The output of the above code looks like as

<image>

Note : For the people who find it difficult to integrate the above code, I am pasting the complete code here.

MainPage.Xaml:

<UserControl x:Class="SilverlightTest1.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <StackPanel Background="White">
        <StackPanel x:Name="LayoutRoot" Orientation="Horizontal">
            <TextBlock Text="CountriesList: " Margin="5" VerticalAlignment="Center" />
            <sdk:AutoCompleteBox x:Name="CountriesNames" Width="200" />
        </StackPanel>
     </StackPanel>

</UserControl>

MainPage.Xaml.cs:

public MainPage()
{
InitializeComponent();
List<string> Countries = new List<string>();
Countries.Add("India");
Countries.Add("USA");
Countries.Add("Japan");
Countries.Add("UK");
Countries.Add("Australia");
Countries.Add("Switzerland");
CountriesNames.ItemsSource = Countries;

}